Alphonse montant



(Model.)

A. MONTANT.

SHUTTLR FASTENBR. No. 245,541. Patented Aug. 9,1881.

ff ll@ Zi/l 'Unt-ren STATES PATENT Orthica.

ALPHONSE MONTANT, OFNEW YORK, N. Y.

SHUTTER-FASTENER.

SPECIFICATION forming part of Letters Patent No. 245,541, dated August 9, 1881.

Application nien May a5, 1880. (Model.)

have made an invention of certain new anduseful Improvements in Fastenin gs for Blinds and for similar purposes; and Ido hereby declare that the following, taken in connection with the accompanying drawings, is a full, clear, and exact description and specification of the same.

The object'of this invention is to enable window-blinds, blind-doors, shutters, and similar articles to be effectually secured so that they cannot be opened by force exerted at the exlrerior, even though the person may insert his hand between blind-slats or through a hole.

The said improvements consist of certain combinations and constructions of devices, which are set forth in detail in the claims at the close of this description.

In order that these improvements may be fully understood,I have represented in the accompanying drawings, and willproceed to describe, the best inode in which I have thus far embodied them for practical use, it being understood that the mode of application may be varied to suit the views of manufacturers or the particular use to which the article embodying one or more of the improvements is to be applied.

In said drawings, Figure l represents a face View of a blind-fastening embodying my invention. Fig. 2 represents the same when drawn to permit the blinds to be opened.

Fig. 3 represents a horizontal section of the device placed upon window-blinds and in the locked condition. Figs. 4 and 5 represent end views of the fastening` in its locked and unlocked conditions, respectively.

The fastening thus represented consists of a bolt andits appurtenances. The bolt A is constructed to turn axially and to slide longitudinally in the staples orl rings bb of abolt-plate, C, by which the bolt is held to the blind, and the bolt is combined with an elongated locking-handle, D, of such length that when the window-sash inside ofthe blinds is closed any attempt to swing the handle from its depending position, as in Figs. l, 2, and 4, to its horizontal position, as at Fig. 5, is obstructed and prevented by the presence of the window-sash inside of the blinds, or,in case of a blind-door, by the solid door inside of the slatted blinddoor. The bolt-plate is fitted with a lockingprojectiomc, which is between the two extreme positions 'occupied by the locking-handle D when the bolt is respectively locked and un-y locked. Hence when the bolt islocked or shot outward, as in Fig. 1, and the locking-handle D hangs downward, as represented in that iigure, the bolt is effectually locked against withdrawal by the engagement of the elongated locking-handle with the outer end of the locking-projection c, and the 'withdrawal of the bolt is prevented until the window-sash inside of the window-blind is raised to permit the elongated handle to be turned from the position represented at Fig. 3 to the position represented at Fig. 4, or thereabout, so that the handle may be disengaged from the lockingprojection c. Hence, even though aperson at the outside ofthe window-blinds should insert his hand between the blind-slats, he cannot unlock the fastening unless the window-sash be first raised or .the sash be broken.

The bolt, when shot outward, is engagedwith a hasp, H, or a striking-plate, which, with ordinary window-blinds, is secured. to the-second member of the pair ot' blinds. In'order that this second member may be eli'ectually secured, the end of the bolt A is partially iiatted, as seen at W, Figs. 1,2, 4, and 5, and the opening of the staple Z of the hasp is of a size sufficient to permit the bolt-end to move through it when this iiatted side is parallel with the hasp-plate, as in Fig. 5. Thefend of the bolt is also notched crosswise at g, so as to form a lug, m, upon the end of the bolt. When the bolt is shot outward, and its elongated handle D hangs downward in its locking position, as in Figs. l and 4, this lug m engages behind the staple or plate l, and thereupon the hasp' IOO gated handle, because the latter locks the holt from being turned axially to disengage the locking-lug m from the hasp.

In place of flatting the end of the bolt and notchiugit crosswisc, so as to form a lug upon the bolt, the bolt may be left cylindrical, and a lug may be riveted to its end, the staple l or plate of the hasp in such case being either notched or slotted for the passage of the lug when the bolt is turned axially to bring the lug in line with the notch or slot.

Although the abovedescribed improvements makethe fasteningexceedingly secure,it might be possible, it'the hasp or the bolt-plate were secured to the blinds by screws at the sides of the bolt, to remove such screws by introducing a short screw-driver between the blindslats. To prevent such action I find it expedient to arrange the holes for the screws r r of the bolt-plate C and those for the screws s s of the hasp II beneath the position of the bolt A. Access can therefore be had to the screw-holes or screws of the bolt-plate G only when the bolt A is removed, which operation can be effected with the bolt-plate only when the elongated handle has first been turned up and is removed by unscrewing it from the bolt. On the other hand, access cannot be had to the screw-holes or screws of the hasp H unless the bolt is withdrawn, as in Fig. 2. The abovedescribed arrangement of screw-holes beneath the bolt therefore effectually prevents the removal of the hasp or the bolt by the insertion of a screw-driver through the blind-slats.

The handle D, in the present example, is removably connected with the bolt by means of a screwed tang, which is screwed into'the bolt, and it is expedient that the disconnection of this handle by unscrewing it by the action of a hand inserted between the blindslats should be prevented. For this purpose the part n of the elongated handle which engages in the space between the staple or eye b of the bolt-plate C and the locking-projec-A tion c is atted or is made square, and the locking-projection c is set close enough to the side of the staple b to embrace the sides ot' this flatted or square portion u of the handle and prevent it from being unscrewed. Hence, when the handle hangs downward, as in Fig.

l, the contact of the adjacent edges of the staple and locking-projection with the flatted or squared portion n of the handle D prevents the latter from being disconnected from the bolt. When, on the other hand, the handle is turned upward, as in Fig. 5, there is space enough between the side of the stable b and the projections e .fr of the bolt-plate to permit the squared part of the handle to turn freely and to be connected with or disconnected from the bolt.

Theelon gated handle hereinbefore described is an important feature of the invention, as set forth in the first claim hereinafter stated, because it operates as a lock whose movement is controlled by the sash or door within the blind to be fastened. It is, however, obvious that in order that the turning up of the bolthandle may be prevented by the sash within it, the bolt-handle must be longer than the ordinary distance between a blind or shutter bolt and the sash within it, and I have found that a length of bolt-handle less than three inches is practically useless for such purpose, and that it is expedient to make the handle from four to six inches in'length. Whenever, therefore, I use the term elongated handle7 in this speciication I mean a handle projecting not less than three inches from the bolt.

I claim as my invention- 1. The combination, substantially as before set forth, of the bolt-plate with its lockingprojection, the bolt constructed to turn axially thereon, and the elongated locking-handle, constituting a fastening for blinds (and for similar devices) which cannot be un bolted without rst opening the window.

2. The combination, substantially as before set forth, ofthe bolt-plate, the bolt constructed to turn axially thereon, the locking-projection of the bolt-plate, and the bolt-handle constructed with a liattened portion to prevent it from being disconnected from the bolt.

In witness whereof I have hereunto set my hand this 22d day of May, A. D. 1880.

ALPHONSE MONTANT.

Witnesses:

F. W. ItAn'rz, A. H. Losnn. 

